Patents by Inventor Likan Liang

Likan Liang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220024885
    Abstract: Provided here are methods of manufacture of viloxazine and its various salts, as well as viloxazine-related compounds, such as novel intermediate reaction products and polymorphs thereof. In particular, the methods provide a substantially pure API of viloxazine HCl while avoiding undesirable impurities. The methods further provide for separating, identifying, and characterizing novel polymorphs of viloxazine. Further provided are methods for synthesis and identification and characterization of novel intermediates of viloxazine, as well as for some important metabolites and precursors of metabolites of viloxazine.
    Type: Application
    Filed: August 4, 2021
    Publication date: January 27, 2022
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Padmanabh P. BHATT, David DAIN, Jean-Philippe TAQUET, Aleksandr PECHENOV, Alexei TCHESNOKOV, Reynold MARIAUX
  • Publication number: 20210322429
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 21, 2021
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan Liang, Padmanabh P. Bhatt, Austin B. Huang, Sachin V. Patel
  • Patent number: 11117862
    Abstract: The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: September 14, 2021
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Martin Hanbauer, Zarghun Nazir, Peter Hildebrand, Attilia Figini, Likan Liang, Tiziano Fumagalli
  • Patent number: 11077114
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: August 3, 2021
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan Liang, Padmanabh P. Bhatt, Austin B. Huang, Sachin V. Patel
  • Publication number: 20200262789
    Abstract: The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.
    Type: Application
    Filed: April 30, 2020
    Publication date: August 20, 2020
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Martin Hanbauer, Zarghun Nazir, Peter Hildebrand, Attilia Figini, Likan Liang, Tiziano Fumagalli
  • Patent number: 10676432
    Abstract: The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 9, 2020
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Martin Hanbauer, Zarghun Nazir, Peter Hildebrand, Attilia Figini, Likan Liang, Tiziano Fumagalli
  • Publication number: 20190300492
    Abstract: Provided here are methods of manufacture of viloxazine and its various salts, as well as viloxazine-related compounds, such as novel intermediate reaction products and polymorphs thereof. In particular, the methods provide a substantially pure API of viloxazine HCl while avoiding undesirable impurities. The methods further provide for separating, identifying, and characterizing novel polymorphs of viloxazine. Further provided are methods for synthesis and identification and characterization of novel intermediates of viloxazine, as well as for some important metabolites and precursors of metabolites of viloxazine.
    Type: Application
    Filed: November 13, 2018
    Publication date: October 3, 2019
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Padmanabh P. BHATT, David DAIN, Jean-Philippe TAQUET, Aleksandr PECHENOV, Alexei TCHESNOKOV, Reynold MARIAUX
  • Publication number: 20190218179
    Abstract: The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.
    Type: Application
    Filed: August 21, 2018
    Publication date: July 18, 2019
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Martin HANBAUER, Zarghun NAZIR, Peter HILDEBRAND, Attilia FIGINI, Likan LIANG, Tiziano FUMAGALLI
  • Patent number: 10314790
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: June 11, 2019
    Assignee: SUPERNUS PHARMACEUTICALS, INC.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20190060323
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun CHANG, Michael L. VIEIRA, Likan LIANG, Padmanabh P. BHATT, Austin B. HUANG, Sachin V. PATEL
  • Patent number: 10160733
    Abstract: Provided here are methods of manufacture of viloxazine and its various salts, as well as viloxazine-related compounds, such as novel intermediate reaction products and polymorphs thereof. In particular, the methods provide a substantially pure API of viloxazine HCl while avoiding undesirable impurities. The methods further provide for separating, identifying, and characterizing novel polymorphs of viloxazine. Further provided are methods for synthesis and identification and characterization of novel intermediates of viloxazine, as well as for some important metabolites and precursors of metabolites of viloxazine.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: December 25, 2018
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Padmanabh P. Bhatt, David Dain, Jean-Philippe Taquet, Aleksandr Pechenov, Alexei Tchesnokov, Reynold Mariaux
  • Patent number: 10149853
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: December 11, 2018
    Assignee: SUPERNUS PHARMACEUTICALS, INC.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan Liang, Padmanabh P. Bhatt, Austin B. Huang, Sachin V. Patel
  • Patent number: 10081595
    Abstract: The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: September 25, 2018
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Martin Hanbauer, Zarghun Nazir, Peter Hildebrand, Attilia Figini, Likan Liang, Tiziano Fumagalli
  • Publication number: 20180265482
    Abstract: Provided here are methods of manufacture of viloxazine and its various salts, as well as viloxazine-related compounds, such as novel intermediate reaction products and polymorphs thereof. In particular, the methods provide a substantially pure API of viloxazine HCl while avoiding undesirable impurities. The methods further provide for separating, identifying, and characterizing novel polymorphs of viloxazine. Further provided are methods for synthesis and identification and characterization of novel intermediates of viloxazine, as well as for some important metabolites and precursors of metabolites of viloxazine.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Padmanabh P. BHATT, David DAIN, Jean-Philippe TAQUET, Aleksandr PECHENOV, Alexei TCHESNOKOV, Reynold MARIAUX
  • Patent number: 10005743
    Abstract: Provided here are methods of manufacture of viloxazine and its various salts, as well as viloxazine-related compounds, such as novel intermediate reaction products and polymorphs thereof. In particular, the methods provide a substantially pure API of viloxazine HCl while avoiding undesirable impurities. The methods further provide for separating, identifying, and characterizing novel polymorphs of viloxazine. Further provided are methods for synthesis and identification and characterization of novel intermediates of viloxazine, as well as for some important metabolites and precursors of metabolites of viloxazine.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: June 26, 2018
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Padmanabh P. Bhatt, David Dain, Jean-Philippe Taquet, Aleksandr Pechenov, Alexei Tchesnokov, Reynold Mariaux
  • Publication number: 20180029982
    Abstract: The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 1, 2018
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Martin HANBAUER, Zarghun NAZIR, Peter HILDEBRAND, Attilia FIGINI, Likan LIANG, Tiziano FUMAGALLI
  • Patent number: 9802893
    Abstract: The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: October 31, 2017
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Martin Hanbauer, Zarghun Nazir, Peter Hildebrand, Attilia Figini, Likan Liang, Tiziano Fumagalli
  • Publication number: 20170266121
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Application
    Filed: March 30, 2017
    Publication date: September 21, 2017
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Hua WANG, Padmanabh P. BHATT, Michael L. VIEIRA
  • Patent number: 9622983
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: April 18, 2017
    Assignee: Supernus Pharmaceutcals, Inc.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20170101377
    Abstract: The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.
    Type: Application
    Filed: November 30, 2016
    Publication date: April 13, 2017
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Martin HANBAUER, Zarghun NAZIR, Peter HILDEBRAND, Attilia FIGINI, Likan LIANG, Tiziano FUMAGALLI